Question

qual é as respostas das equações?

Answer 1

C)x-3=-1     
    x=-1+3
    x=2
**************************************************
D)x+7=-3
    x=-3-7
    x=-10
**************************************************
H) 3y=18
     y=18/3
     y=6
**************************************************
i)7x+5=68-2x
  7x+2x=68-5
  9x=63
  x=63/9
  x=7